import java.util.HashMap;

public class twoSum {
    public int[] _twoSum(int[] nums, int target) {
        HashMap<Integer, Integer> map = new HashMap<>();
        for (int i = 0; i < nums.length; i++) {
            if (map.containsKey(target - nums[i])) {
                return new int[] { nums[map.get(target - nums[i])], nums[i] };
            }
            map.put(nums[i], i);
        }
        return new int[0];
    }
}
